Special alloys / Supply & sourcing
Cobalt-based and other high-performance alloys for combined wear and corrosion, sourced against producer and purchase specifications.

Grade discovery
Ultimet® is a registered trademark of Haynes International. Values shown are nominal; actual values are given in the mill certificate.
Grades in this category
| Grade | UNS | W.Nr. | Key property | Typical use |
|---|---|---|---|---|
| Ultimet® | R31233 | — | Wear + corrosion resistance | Pump and valve parts, nozzles, mixer blades |
The listed range is for supply and sourcing, not a statement of current stock. Grade, form, condition, make, origin, documentation and delivery are confirmed at quotation.
Source: Rajkamal Metals product range, October 2026. Source undated; reviewed 3 October 2026. Designations identify enquiries, not equivalence or suitability.
Forms we supply
High-performance in every common form.
Ultimet® is a cobalt-chromium-nickel alloy that resists cavitation, erosion, galling and wear while keeping the corrosion resistance of a high-alloy stainless or nickel alloy.
Corrosion & temperature resistance
Ultimet combines wear resistance with good resistance to pitting, crevice corrosion and many acids.
Applications
Pump and valve components, spray nozzles, mixer blades and parts exposed to both slurry wear and corrosion.
Before we quote
These fields help us review your request. Size range, make, origin, condition, documentation and availability are confirmed against the complete enquiry.


